See main article: 1973 Davis Cup.
The Americas Zone was one of the three regional zones of the 1973 Davis Cup.
12 teams entered the Americas Zone split across two sub-zones, the North & Central America Zone and the South America Zone. 5 teams played in each of the sub-zone's preliminary rounds, with two teams progressing to each sub-zone's main draw to join the previous year's finalists the United States and Chile. The winners of each sub-zone main draw then played against each other to determine who moved to the Inter-Zonal Zone to compete against the winners of the Eastern Zone and Europe Zone.[1]
The United States defeated Mexico in the North & Central America Zone final, and Chile defeated Argentina in the South America Zone final. In the Americas Inter-Zonal Final, the United States defeated Chile and progressed to the Inter-Zonal Zone.
Colombia vs. Canada
Colombia vs. Caribbean/West Indies
Mexico vs. Venezuela
Mexico vs. Colombia
Mexico vs. United States
Argentina vs. Ecuador
Argentina vs. Brazil
Uruguay vs. South Africa
Argentina vs. South Africa
Argentina vs. Chile
United States vs. ChileThe doubles match between Smith/van Dillen and Cornejo/Fillol set the Davis Cup record for the most games in a doubles rubber (122). The second set, which went to 37-39, set the record for the most games played in a set (76).[2]